/* ===== Reset & Base ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #0a4d8c;
  --primary-dark: #063a6a;
  --primary-light: #1a6bb5;
  --accent: #e87a1e;
  --accent-hover: #d46a10;
  --dark: #0f1923;
  --dark-light: #1a2a3a;
  --gray-900: #1e293b;
  --gray-800: #334155;
  --gray-700: #475569;
  --gray-600: #64748b;
  --gray-500: #94a3b8;
  --gray-400: #cbd5e1;
  --gray-300: #e2e8f0;
  --gray-200: #f1f5f9;
  --gray-100: #f8fafc;
  --white: #ffffff;
  --success: #10b981;
  --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 14px;
  padding: 12px 28px;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--accent);
  color: var(--white);
}

.btn--primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(232, 122, 30, 0.35);
}

.btn--outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.4);
}

.btn--outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.1);
}

.btn--sm {
  padding: 10px 22px;
  font-size: 14px;
}

.btn--lg {
  padding: 16px 36px;
  font-size: 16px;
}

.btn--full {
  width: 100%;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 25, 35, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  transition: var(--transition);
}

.header.scrolled {
  background: rgba(15, 25, 35, 0.98);
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 10px;
  padding-bottom: 10px;
}

.logo {
  font-family: 'Montserrat', sans-serif;
  font-size: 22px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.5px;
  flex-shrink: 0;
}

.header__nav {
  display: flex;
  gap: 32px;
}

.header__nav-link {
  color: var(--gray-400);
  font-size: 15px;
  font-weight: 500;
}

.header__nav-link:hover {
  color: var(--white);
}

.header__right {
  display: flex;
  align-items: center;
  gap: 24px;
}

.header__badges {
  display: flex;
  flex-direction: row;
  gap: 10px;
  align-items: center;
}

.badge {
  font-size: 13px;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: 8px;
  letter-spacing: 0.3px;
}

.badge--24h {
  background: var(--success);
  color: var(--white);
}

.badge--fast {
  background: var(--primary);
  color: var(--white);
}

.header__phone {
  color: var(--white);
  font-family: 'Montserrat', sans-serif;
  font-size: 17px;
  font-weight: 700;
}

.header__phone:hover {
  color: var(--accent);
}

.header__callback-btn {
  display: none;
}

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: var(--transition);
  border-radius: 2px;
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--dark);
  padding: 24px;
  transform: translateY(-100%);
  opacity: 0;
  transition: var(--transition);
  z-index: 999;
}

.mobile-menu.active {
  display: block;
  transform: translateY(0);
  opacity: 1;
}

.mobile-menu__inner {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mobile-menu__link {
  color: var(--gray-300);
  font-size: 18px;
  font-weight: 500;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.mobile-menu__phone {
  color: var(--white);
  font-size: 22px;
  font-weight: 700;
  padding: 16px 0;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 120px 0 50px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10, 77, 140, 0.92) 0%,
    rgba(15, 25, 35, 0.95) 100%
  );
  z-index: -1;
}

.hero__content {
  position: relative;
  z-index: 1;
}

.hero__badges-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.hero__badge {
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  color: var(--white);
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid rgba(255,255,255,0.2);
}

.hero__title {
  font-size: clamp(28px, 4vw, 44px);
  color: var(--white);
  margin-bottom: 14px;
  max-width: 800px;
  font-weight: 800;
}

.hero__subtitle {
  font-size: clamp(15px, 1.8vw, 18px);
  color: var(--gray-400);
  max-width: 650px;
  line-height: 1.6;
}

/* ===== Stats ===== */
.stats {
  padding: 40px 0;
  background: var(--dark);
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stats__item {
  display: flex;
  flex-direction: column;
  text-align: center;
  align-items: center;
  padding: 20px;
  border-right: 1px solid rgba(255,255,255,0.1);
}

.stats__item:last-child {
  border-right: none;
}

.stats__number {
  font-family: 'Montserrat', sans-serif;
  font-size: 36px;
  font-weight: 800;
  color: var(--accent);
}

.stats__label {
  font-size: 14px;
  color: var(--gray-500);
  margin-top: 4px;
}

/* ===== Section Styles ===== */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  background: var(--primary);
  color: var(--white);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(28px, 4vw, 44px);
  color: var(--dark);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 18px;
  color: var(--gray-600);
  max-width: 700px;
  margin: 0 auto;
}

/* ===== Products ===== */
.products {
  padding: 60px 0;
  background: var(--gray-100);
}

.products__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.product-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 24px 16px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  border: 1px solid var(--gray-200);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary);
}

.product-card__badge-label {
  position: absolute;
  top: 14px;
  left: 14px;
  display: flex;
  gap: 6px;
}

.product-card__badge {
  background: var(--primary);
  color: var(--white);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.product-card__badge--new {
  background: var(--accent);
}

.product-card__image {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  flex-shrink: 0;
}

.product-card__image img {
  max-height: 100%;
  width: auto;
  transition: var(--transition);
}

.product-card:hover .product-card__image img {
  transform: scale(1.05);
}

.product-card__title {
  font-size: 19px;
  color: var(--dark);
  margin-bottom: 16px;
  flex-shrink: 0;
}

.product-card__prices {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 18px;
  flex-shrink: 0;
}

.product-card__price {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  background: var(--gray-100);
  border-radius: var(--radius-sm);
}

.product-card__price .price-label {
  font-size: 13px;
  color: var(--gray-600);
}

.product-card__price .price-value {
  font-family: 'Montserrat', sans-serif;
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  white-space: nowrap;
}

.product-card__btn {
  margin-top: auto;
}

/* ===== Accessories ===== */
.accessories {
  padding: 80px 0;
  background: var(--white);
}

.accessories__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  max-width: 640px;
  margin: 0 auto;
}

.accessory-card {
  background: var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  border: 2px solid transparent;
  transition: var(--transition);
}

.accessory-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.accessory-card__icon {
  width: 80px;
  height: 80px;
  background: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  color: var(--primary);
}

.accessory-card__title {
  font-size: 20px;
  color: var(--dark);
  margin-bottom: 12px;
}

.accessory-card__price {
  display: block;
  font-family: 'Montserrat', sans-serif;
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 24px;
}

/* ===== About ===== */
.about {
  padding: 100px 0;
  background: var(--white);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 60px;
}

.about__images {
  position: relative;
  height: 450px;
}

.about__img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  position: absolute;
}

.about__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about__img--large {
  width: 75%;
  height: 100%;
  left: 0;
  top: 0;
}

.about__img--small {
  width: 55%;
  height: 60%;
  right: 0;
  bottom: 0;
  border: 6px solid var(--white);
}

.about__features {
  display: grid;
  gap: 24px;
}

.about__feature {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.about__feature-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  background: var(--primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
}

.about__feature-text h4 {
  font-size: 18px;
  color: var(--dark);
  margin-bottom: 6px;
}

.about__feature-text p {
  color: var(--gray-600);
  font-size: 15px;
}

.about__banner {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  height: 350px;
}

.about__banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about__banner-text {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(10, 77, 140, 0.95), rgba(10, 77, 140, 0.7));
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 48px;
  gap: 24px;
}

.about__banner-text h3 {
  color: var(--white);
  font-size: clamp(22px, 3vw, 32px);
  max-width: 600px;
}

/* ===== Team ===== */
.team {
  padding: 100px 0;
  background: var(--gray-100);
}

.team__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.team__card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 280px;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.team__card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.team__card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.team__card:hover img {
  transform: scale(1.05);
}

/* ===== CTA ===== */
.cta {
  padding: 80px 0;
  background: var(--gradient-primary);
}

.cta__inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.cta__title {
  font-size: clamp(28px, 4vw, 40px);
  color: var(--white);
  margin-bottom: 16px;
}

.cta__subtitle {
  font-size: 18px;
  color: var(--gray-300);
  margin-bottom: 24px;
}

.cta__phone {
  font-family: 'Montserrat', sans-serif;
  font-size: 32px;
  font-weight: 800;
  color: var(--white);
  display: block;
  margin-bottom: 24px;
}

.cta__phone:hover {
  color: var(--accent);
}

.cta__badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 0;
}

.cta__badge {
  background: rgba(255,255,255,0.15);
  color: var(--white);
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 500;
}

/* ===== Certificates ===== */
.certificates {
  padding: 100px 0;
  background: var(--gray-100);
}

.certificates__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  max-width: 1100px;
  margin: 0 auto;
}

.certificate-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--gray-200);
}

.certificate-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary);
}

.certificate-card__img {
  width: 100%;
  max-width: 362px;
  height: auto;
  border-radius: var(--radius-sm);
}

/* ===== Footer ===== */
.footer {
  background: var(--dark);
  padding: 60px 0 24px;
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1.5fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer__logo {
  font-family: 'Montserrat', sans-serif;
  font-size: 24px;
  font-weight: 800;
  color: var(--white);
  display: inline-block;
  margin-bottom: 16px;
}

.footer__text {
  color: var(--gray-500);
  font-size: 15px;
  max-width: 300px;
}

.footer__heading {
  color: var(--white);
  font-size: 16px;
  margin-bottom: 16px;
}

.footer__phone {
  color: var(--white);
  font-family: 'Montserrat', sans-serif;
  font-size: 20px;
  font-weight: 700;
  display: block;
  margin-bottom: 8px;
}

.footer__phone:hover {
  color: var(--accent);
}

.footer__delivery,
.footer__schedule,
.footer__region {
  color: var(--gray-500);
  font-size: 14px;
}

.footer__link {
  display: block;
  color: var(--gray-400);
  font-size: 15px;
  padding: 6px 0;
}

.footer__link:hover {
  color: var(--white);
}

.footer__bottom {
  padding-top: 24px;
  text-align: center;
}

.footer__bottom p {
  color: var(--gray-600);
  font-size: 14px;
}

/* ===== Animations ===== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .certificates__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .header__nav {
    display: none;
  }

  .header__callback-btn {
    display: inline-flex;
  }

  .header__badges {
    gap: 8px;
  }

  .badge {
    font-size: 12px;
    padding: 6px 12px;
  }

  .stats__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats__item {
    border-right: none;
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }

  .about__grid {
    grid-template-columns: 1fr;
  }

  .about__images {
    height: 350px;
  }

  .footer__inner {
    grid-template-columns: 1fr 1fr;
  }

  .products__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }
}

@media (max-width: 768px) {
  .header__badges {
    display: none;
  }

  .header__phone {
    display: none;
  }

  .burger {
    display: flex;
  }

  .hero {
    padding-top: 110px;
    padding-bottom: 40px;
  }

  .hero__title {
    font-size: 26px;
  }

  .hero__subtitle {
    font-size: 15px;
  }

  .products {
    padding: 40px 0;
  }

  .products__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .product-card {
    padding: 20px 12px;
  }

  .product-card__image {
    height: 110px;
  }

  .product-card__title {
    font-size: 16px;
    margin-bottom: 12px;
  }

  .product-card__price .price-value {
    font-size: 14px;
  }

  .product-card__price .price-label {
    font-size: 11px;
  }

  .product-card__price {
    padding: 8px 8px;
  }

  .product-card__prices {
    gap: 8px;
    margin-bottom: 14px;
  }

  .stats__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats__number {
    font-size: 28px;
  }

  .about__images {
    height: 280px;
  }

  .about__banner {
    height: 250px;
  }

  .about__banner-text {
    padding: 24px;
  }

  .about__banner-text h3 {
    font-size: 18px;
  }

  .team__grid {
    grid-template-columns: 1fr;
  }

  .team__card {
    height: 220px;
  }

  .cta__phone {
    font-size: 24px;
  }

  .footer__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 12px;
  }

  .hero__badges-row {
    gap: 8px;
  }

  .hero__badge {
    font-size: 12px;
    padding: 6px 12px;
  }

  .section-title {
    font-size: 24px;
  }

  .products__grid {
    grid-template-columns: 1fr;
    max-width: 300px;
    margin: 0 auto;
  }

  .product-card__image {
    height: 140px;
  }

  .about__images {
    height: 240px;
  }
}